Question: Directions for the Problems. The exam consists of three problems. - Draw a conceptual data model to model the scenario in each problem. Use the

Directions for the Problems. The exam consists of

Directions for the Problems. The exam consists of three problems. - Draw a conceptual data model to model the scenario in each problem. Use the model constructs (e.g., the material on the E-R model and the enhanced E-R model) Be sure to include all appropriate completeness constraints, disjointness constraints, and subtype indicators in your conceptual data models. 1. Western Window Cleaners has business, school, and residential customers. Attributes of business customers include WindowCustID, WindowBusName, WAddress (composted of WStreetAddress, WCity, WState, and WZipCode), and BusPremiumRate. - Attributes of school customers include WindowCustID, WindowSchoolDistrictName, WAddress (composed of WStreetAddress, WCity, WState, and WZipCode), and Superintendent. - Attributes of residential customers include WindowCustID, WindowResName (composed of WFirstName, WMiddleInitial, and WLastName), WAddress (composed of WStreetAddress, WCity, WState, and WZipCode), and PerClearningRate. - There are no other types of customers and a few customers are both business and residential customers

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